/**
 * Mogwai ERDesigner. Copyright (C) 2002 The Mogwai Project.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA.
 */
package de.erdesignerng.model.check;

import de.erdesignerng.model.Index;
import de.erdesignerng.model.Model;
import de.erdesignerng.model.Table;

/**
 * Check for Entities without a primary key.
 */
public class TableWithPrimaryKeyCheck implements ModelCheck {
    @Override
    public void check(Model aModel, ModelChecker aChecker) {
        for (Table theEntity : aModel.getTables()) {
            Index theIndex = theEntity.getPrimarykey();
            if (theIndex == null || theIndex.getExpressions().size() == 0) {
                aChecker.addError(new ModelError("Table "+theEntity.getName()+" does not have a primary key"));
            }
        }
    }
}
